Fan Shaft 21N-03-31621 for Komatsu PC1250-7 PC1100-6 Excavator Cooling Spare Parts

Descripción de producto

Fan Shaft 21N-03-31621 for Komatsu PC1250-7 PC1100-6 Excavator Engine Spare Parts

High-quality fan shaft for Komatsu PC1250-7 and PC1100-6 excavators. Direct replacement with 12-month warranty.

Product Specifications

Product Description

The 21N-03-31621 Fan Shaft is an engine cooling component installed in the fan drive assembly of Komatsu PC1250-7 and PC1100-6 excavators. It transmits rotational power from the engine to the cooling fan, maintaining consistent airflow through the radiator and oil cooler to dissipate engine heat during demanding digging and loading operations.

This is a brand new, 100% tested replacement fan shaft that serves as a direct replacement for the original unit. It features precision-ground bearing surfaces, heat-treated and quenched alloy steel construction, factory-installed bearings and seals, and a robust spline connection to the fan hub for vibration-resistant power transmission in heavy-duty excavator applications.

Why Choose Us

✅ Meets OEM Original Specifications quality at competitive price

✅ 12-month warranty

✅ Fast lead time 3-5 working days

✅ Strict QC inspection

✅ Custom packaging available

FAQ

Q: What does a fan shaft do?

A: It transmits rotational power from the engine to the cooling fan, driving the fan blades that pull air through the radiator and oil cooler. This maintains optimal engine and hydraulic oil temperatures during continuous excavator operation.

Q: What are the symptoms of a worn fan shaft?

A: Common symptoms include abnormal vibration or noise from the fan area, engine overheating, reduced cooling efficiency, fan belt slipping or squealing, and visible wear or scoring on the shaft bearing surfaces.

Q: OEM or aftermarket?

A: High-quality aftermarket meeting OEM Original Specifications.

Q: What is the lead time?

A: 3-5 working days for in-stock orders; 7-15 working days for bulk orders.

Q: What payment methods do you accept?

A: We accept T/T (Telegraphic Transfer). Other payment methods may be available upon request for qualified buyers.

Q: Packaging options?

A: OEM, neutral, or custom packaging available.

About Guangzhou Qianchuan Machinery Parts Co., Ltd.

广州千川机械配件有限公司 — 13+ Years experience, 6500+ spare parts items, exported to over 200 countries. OEM & aftermarket parts for excavators, loaders, and forklifts. Specializing in Cat, Komatsu, Kubota, Sany, XCMG, Doosan, and more.

Contact us for wholesale pricing!

WhatsApp: +86 15360646166

Tim@partsforexcavator.com | www.partsforexcavator.com